Basically I need (or think I need) such a long extension to reach into the workpiece, a large lampshade, to steady it for final turning , sanding and finishing. I can't use a centre steady as I would on a smaller piece as it's so large I'm operating near the limit of my lathes capabilities and there just isn't room underneath.
I also thought that stacking up several might not be sturdy enough and could introduce a bit of play.
I would pref 2mt, as all of my bits and bobs are 2mt
Vic, thanks for that link, they might be good. Graham, thanks also for yours. I couldn't get it to work but found it the old fashioned way. Couldn't see how long they are but I was being distracted y a six year old.